On Mon, 08 Dec 2008, Witold Szczeponik wrote:> This patch sets the power of PnP ACPI devices to D0 when they> are activated and to D3 when they are disabled. The latter is

This will likely fix my T43 to power down USB during STR. THANKS!!Now, I just need to check if the ACPI BIOS is smart enough to not doit when they are configured as wake devices [in the BIOS].

Although I do wonder WTF we don't do that on our USB UHCI/EHCI kerneldrivers, that ACPI needs to step in to fix it. If it is not a wakedevice, why are we leaving it powered up? It is bad enough we don'thave any sort of proper USB power control, but to leave the entire USBsubsystem powered up without reason?!

Vista not only powers down the USB HCIs and ports on STR, it alsopowers down ports when you "safely remove the USB device", and seemsto leave the port powered down until you insert a device (or removethe device already in there, whatever).

-- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh